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Marquise|Lab Grown|IGI

1.00ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG500144857

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG500144857

Diamond specifications and retailer prices

From $843 USD
As of November 2, 2026
Save $955 USD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,697 USD at Flawless Fine Jewelry · As of November 2, 2026
View at Flawless Fine Jewelry

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG500144857 or 500144857. Listed at 16 retailers as of October 29, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500144857
Dimensions10.53 × 5.23 × 3.03 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.53 mm5.23 mm1.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500144857
Side View
Table 62.5%Crown 34.3°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 57.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,697 USD|Low: $809 USD|High: $3,710 USD|Avg: $1,722 USD
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 11$843 USD
Retailer 4$917 USD
Retailer 5$944 USD
Retailer 12$960 USD
Retailer 13$978 USD
Retailer 6$1,155 USD
Retailer 2$1,503 USD
Retailer 14$1,573 USD
Retailer 9$1,798 USD
Retailer 10$2,248 USD
Retailer 8$2,548 USD
Flawless Fine Jewelry$2,697 USD
Retailer 3$2,750 USD
Retailer 7$3,665 USD

45 data points across 14 retailers

16 retailers$843 USD to $1,798 USD

B
Cheapest Retailer
-
$843 USD
B
Retailer 2
-
$917 USD
View
B
Retailer 3
-
$944 USD
View
Final sale: no returns
B
Retailer 4
-
$960 USD
View
Retailer 5
-
$978 USD
View
Price last confirmed 16 days ago
B
Retailer 6
-
$978 USD
View
B
Retailer 7
-
$1,155 USD
View
B
Retailer 8
-
$1,503 USD
£1,183 GBP
View
B
Retailer 9
-
$1,573 USD
View
B
Retailer 10
-
$1,798 USD
ZAR 29,041 ZAR
View
Retailer 11
-
$2,248 USD
View
Price under review
Retailer 12
-
$2,548 USD
A$3,920 AUD
View
Price under review
Most Expensive
Flawless Fine Jewelry
B2C327413 · Nov 2
$2,697 USD
£2,124 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $843 USDSave up to $955 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.00ct Marquise
$843 USD